Resampling-based multiple testing for microarray data analysis
Author(s)
Ge, YC; Dudoit, S; Speed, TP;
Details
Publication Year 2003-06,Volume 12,Issue #1,Page 1-77
Journal Title
TEST
Publication Type
Journal Article
Abstract
The burgeoning field of genomics has revived interest in multiple testing procedures by raising new methodological and computational challenges. For example, microarray experiments generate large multiplicity problems in which thousands of hypotheses are tested simultaneously. Westfall and Young (1993) propose resampling-based p-value adjustment procedures which are highly relevant to microarray experiments. This article discusses different criteria for error control in resampling-based multiple testing, including (a) the family wise error rate of Westfall and Young (1993) and (b) the false discovery rate developed by Benjamini and Hochberg (1995), both from a frequentist viewpoint; and (c) the positive false discovery rate of Storey (2002a), which has a Bayesian motivation. We also introduce our recently developed fast algorithm for implementing the minP adjustment to control family-wise error rate. Adjusted p-values for different approaches are applied to gene expression data from two recently published microarray studies. The properties of these procedures for multiple testing are compared.
Publisher
SOCIEDAD ESTADISTICA INVESTIGACION OPERATIVA
Keywords
FALSE DISCOVERY RATE; DIFFERENTIALLY EXPRESSED GENES; OLIGONUCLEOTIDE ARRAYS; PATTERNS; CONFIDENCE; DISTRIBUTIONS; STATISTICS; VARIANCE; CANCER; RATES
Terms of Use/Rights Notice
Refer to copyright notice on published article.


Creation Date: 2003-06-01 12:00:00
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